Oceans serve as the planet's largest habitat and also help to regulate the global climate. But why is the ocean salty? And how is climate impacting the ocean? Find out more about the ocean, including the consequences of and potential solutions to these changes.

Mars, the fourth planet from the sun, has been a source of intrigue throughout human history. Recent NASA exploratory expeditions revealed some of the planet's biggest mysteries. This video explains what makes Mars so different fro mEarth and what would happen if humans lived there.

Tornadoes, nearly three-quarters of which occur within the US, are unpredictable and can cause massive damage. New tools and data are helping scientists learn more about when they might form and what paths they might take.

Tsunamis are giant, powerful waves most often caused by earthquakes beneath the ocean floor. Their incredible power can destroy entire communities, then drag the debris out to sea. This video shows what causes tsunamis and the importance of evacuating any area under a tsunami alert.

Climate Change is a real and serious issue. In this video Bill Nye, the Science Guy, explains what causes climate change, how it affects our planet, why we need to act promptly to mitigate its effects, and how each of us can contribute to a solution.

Daylight saving time is the practice of setting the clocks forward one hour during the spring and back again in the fall in order to take advantage of natural daylight. It has both benefits and negative consequences. This video helps you understand all of them.

Using elevation and image data returned by Lunar Reconnaissance Orbiter (LRO), this animation takes the viewer on a virtual tour of the Moon. The viewer flies over the lunar terrain, coming in for close looks at a variety of interesting sites. Sites were chosen to illustrate a wide variety of lunar...

What gives Velcro its stick? Why does pollen make some people sneeze? And, how pure is the salt that we put on our food? In this episode of STEM Flicks, explore the role that microscopy plays in our everyday lives. Discover how scientists and engineers at Pacific Northwest National Laboratory use...

Have you ever wondered what it would be like to live and work in space? Follow astronauts on the International Space Station in a series of videos as they explain their daily routines. Educators can use this series of videos and resources to enhance K-12 science, technology, engineering, and...

This visualization, comprised of imagery from the geostationary satellites of EUMETSAT, NOAA and the JMA, shows an entire year of weather across the globe during 2015, with audio commentary from Mark Higgins, Training Manager at EUMETSAT. The visualization has been produced by EUMETSAT's data...